Pat dry and season: Pat the chicken thighs dry with paper towels.
Sprinkle both sides with salt and pepper. Dry skin helps you get that crisp, golden sear.
Brown the chicken: Heat olive oil in a large skillet over medium-high heat. Place thighs skin-side down and cook without moving for 6–8 minutes, until the skin is deep golden and crisp.
Flip and cook 3–4 minutes more. Transfer to a plate; they’ll finish cooking in the sauce.
Sauté aromatics: Reduce heat to medium. Add butter to the skillet.
Stir in onions and mushrooms with a pinch of salt. Cook, stirring occasionally, until mushrooms release their moisture and start to brown, about 6–8 minutes.
Add garlic and thyme: Stir in garlic, thyme, and smoked paprika. Cook 1 minute until fragrant.
Don’t let the garlic burn.
Build the sauce: Sprinkle flour over the mushrooms and stir for 30 seconds to coat. Pour in the white wine, scraping up any browned bits from the pan. Let it bubble for 1–2 minutes to reduce slightly.
Add broth and simmer: Stir in the chicken broth.
Bring to a gentle simmer. Taste and adjust salt as needed.
Return the chicken: Nestle the thighs back into the pan, skin-side up. Reduce heat to medium-low, cover, and simmer 12–15 minutes, until the internal temperature reaches 165°F (74°C).
Finish the sauce: Stir in the heavy cream (if using) and lemon juice.
Simmer uncovered for 2 minutes to thicken slightly. Taste and adjust seasoning—more salt, pepper, or a splash more lemon for brightness.
Rest and garnish: Let the chicken sit off heat for 3 minutes. Sprinkle with chopped parsley.
Serve with mashed potatoes, buttered noodles, or rice to soak up the sauce.